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MC9S12C Datasheet, PDF (73/680 Pages) Motorola, Inc – 16-Bit Microcontroller | |||
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Chapter 2
Port Integration Module (PIM9C32) Block Description
2.1 Introduction
The Port Integration Module establishes the interface between the peripheral modules and the I/O pins for
all ports.
This chapter covers:
⢠Port A, B, and E related to the core logic and the multiplexed bus interface
⢠Port T connected to the TIM module (PWM module can be routed to port T as well)
⢠Port S connected to the SCI module
⢠Port M associated to the MSCAN and SPI module
⢠Port P connected to the PWM module, external interrupt sources available
⢠Port J pins can be used as external interrupt sources and standard I/Oâs
The following I/O pin configurations can be selected:
⢠Available on all I/O pins:
â Input/output selection
â Drive strength reduction
â Enable and select of pull resistors
⢠Available on all Port P and Port J pins:
â Interrupt enable and status ï¬ags
The implementation of the Port Integration Module is device dependent.
2.1.1 Features
A standard port has the following minimum features:
⢠Input/output selection
⢠5-V output drive with two selectable drive strength
⢠5-V digital and analog input
⢠Input with selectable pull-up or pull-down device
Optional features:
⢠Open drain for wired-OR connections
⢠Interrupt inputs with glitch ï¬ltering
Freescale Semiconductor
MC9S12C-Family / MC9S12GC-Family
73
Rev 01.23
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